I'm not sure about it medically speaking but theoretically speaking I would think its possible. My uncle was delivered breech (and 10.5lbs!) in 1970. My 2nd, 4th and 5th pregnancies were breech but all turned on their own at some point late in the 3rd trimester, 36-38wks. All were bigger babies, 8-10 to 9-2 range. My good friend was breech and born c/s and 2 of her 3 babies (both her boys) were breech and born c/s as well.